Slightly compatible polymer mixtures at equilibrium: Phase composition, interfacial and diffusional properties

Tsenoglou, CJ; Papaspyrides, CD

dc.contributor.author	Tsenoglou, CJ	en
dc.contributor.author	Papaspyrides, CD	en
dc.date.accessioned	2014-03-01T01:17:07Z
dc.date.available	2014-03-01T01:17:07Z
dc.date.issued	2001	en
dc.identifier.issn	0032-3861	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14358
dc.subject	Phase equilibrium	en
dc.subject	Polymer blends	en
dc.subject	Polymer solutions	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Diffusion	en
dc.subject.other	Phase composition	en
dc.subject.other	Phase equilibria	en
dc.subject.other	Interfacial bonding	en
dc.subject.other	Polymers	en
dc.subject.other	polymer	en
dc.subject.other	blend	en
dc.subject.other	miscibility	en
dc.subject.other	mixture	en
dc.subject.other	polymer	en
dc.subject.other	article	en
dc.subject.other	calculation	en
dc.subject.other	chemical binding	en
dc.subject.other	diffusion	en
dc.subject.other	miscibility	en
dc.subject.other	molecular size	en
dc.subject.other	tension	en
dc.subject.other	thickness	en
dc.title	Slightly compatible polymer mixtures at equilibrium: Phase composition, interfacial and diffusional properties	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0032-3861(01)00294-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0032-3861(01)00294-4	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	An approximate solution is presented to the phase equilibrium problem for the case of a partially miscible polymer solution or a binary heteropolymer blend. It is based on the Flory-Huggins theory and is valid for mixtures well into the phase-separated region. Analytical expressions are derived for the extent and composition of each of the two coexisting phases as a function of the component molecular size and interaction strength. These results are combined with Helfand's model to provide estimates for the interfacial tension and thickness and, therefore, a measure of the quality of the interfacial bonding in a polymer/polymer blend. They are also utilized in conjunction with a free volume theory approach for calculating the mutual diffusion coefficient of a penetrant, migrating through a polymer. (C) 2001 Published by Elsevier Science Ltd.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Polymer	en
dc.identifier.doi	10.1016/S0032-3861(01)00294-4	en
dc.identifier.isi	ISI:000169391000019	en
dc.identifier.volume	42	en
dc.identifier.issue	19	en
dc.identifier.spage	8069	en
dc.identifier.epage	8074	en